Fix broken link

Author: PrinceRajRoy

docs/api/createAsyncThunk.mdx

@@ -19,7 +19,7 @@ It does not generate any reducer functions, since it does not know what data you
 
 :::tip
 
-Redux Toolkit's [**RTK Query data fetching API**](../rtk-query/overview.mdx) is a purpose built data fetching and caching solution for Redux apps, and can **eliminate the need to write _any_ thunks or reducers to manage data fetching**. We encourage you to try it out and see if it can help simplify the data fetching code in your own apps!
+Redux Toolkit's [**RTK Query data fetching API**](../rtk-query/overview.md) is a purpose built data fetching and caching solution for Redux apps, and can **eliminate the need to write _any_ thunks or reducers to manage data fetching**. We encourage you to try it out and see if it can help simplify the data fetching code in your own apps!
 
 :::